#ifndef __FORMATONBASE_H__ 
#define __FORMATONBASE_H__
#include <Format.h>

class BaseFormat:public Format
{
public:
    virtual void toString(std::ostream & os,const int value, const Unit &unit);
    static const BaseFormat& getInstance();
private:
    BaseFormat();
};
const Format&  BASE_FORMAT = BaseFormat::getInstance();
#endif

